What's this?

This repository contains a testbed for the type of code inspection used in the presentation. There are a number of rather simple programs, either in Java for handling with the Java SDK and Android tools, or native c code.

Have fun!

-- Angelo van der Sijpt

Requirements

To reproduce the Java based examples, you will need

• a recent Java SDK (I used Java 8), with tools javac and javap added to your path. This should happen by default;
• Android build tools, with dx and dexdump on your path. Once you have installed the sdkmanager, make sure the tools end up on the path. I installed using homebrew, so I need to run export PATH=$PATH:/usr/local/Caskroom/android-sdk/3859397/build-tools/26.0.3 before running these examples.

The Java examples should run on any Mac and Linux.

For the native code, I only have Mac compatible scripts. You'll need,

• gcc and otool on the path. These come with your installation of Xcode.

Reproducing

Java examples

The java directory contains a script, and a bunch of directories. The directories represent examples. For instance, run

sh inspect.sh SimpleAddition

to compile and inspect the example program in the SimpleAddition directory, along with its Android equivalent.

The gc directory contains a single example of inspecting garbage collector use. Run run.sh to see it in action.

Machine code examples

Run the inspect.sh or inspect_optimized.sh script with the name of a source file to inspect the (non-)optimized code. For instance, run

sh inspect_optimized.sh unroll.c